SECTION 12 6100
FIXED AUDIENCE SEATING
PART 1 - GENERAL
1.01
SUMMARY
A.
B.
1.02
Section Includes:
1.
Auditorium Seating: Fixed and removable upholstered chairs with self-rising
seat mechanism.
2.
Lecture Room Seating: Laminate finish tables with fixed, armless swing away
chairs.
Related Sections:
1.
Division 01 - General Requirements.
2.
Section 03 3000 - Cast-In-Place Concrete.
3.
Division 26 - Electrical
PROJECT REQUIREMENTS
A.
Seating Layout: Design and install seating to conform with specified requirements in a
manner that produces seating layout with standards spaced laterally in each row so that
end standards are in alignment from first to last row, regardless of whether aisles
converge or are of constant width, and so that sightlines are optimized.
B.
Auditorium Seating: Provide labor, materials, necessary equipment and services to
complete the installation of the multiple seating as indicated on the Drawings and/or as
specified herein. The upholstered multiple seating shall have self-rising seat
mechanisms, plastic rear panels, arm rests, and accessories, including end panels, aisle
lights, folding tablet arms, and seat numbers.
C.
Lecture Room Seating: Provide labor, materials, necessary equipment and services to
complete the installation of the single support pedestal table system with attached
swing away chairs and accessories as indicated on the Drawings and/or as specified
herein. The table supports shall be attached to the floor and have two chairs mounted
on a cantilevered beam and pivot mechanism. The chairs shall have a sculptured
plastic seat with back uppers attached. The tables shall be in connecting sections to
form straight or curved rows as indicated on the Drawings.
1.03
SUBMITTALS
A.
Shop Drawings: Submit Shop Drawings prepared from field measurements indicating
layout of seating units, chair sizes, aisle widths, anchorage, and accessories.
B.
Product Data: Submit Product Data for each type of seating, tabletops and accessories.
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-1
C.
Material Samples: Submit color charts and Sample materials indicating manufacturer's
full color range of standard colors, finishes, patterns and texture available for each
exposed material.
D.
Certificates: Submit product certificates signed by manufacturer of seating, certifying
that products comply with specified requirements.
E.
Mock Up:
1.04
1.
Auditorium Seating: Provide field-constructed mock up of two seats
representing extremes of widths to be provided. Include at least one aisle unit.
Reviewed mock up may become part of the Work.
2.
Lecture Room Seating: Provide field-constructed mock-up of one seating
module showing end aisle condition. Reviewed mock up may become part of
the Work.
QUALITY ASSURANCE
A.
B.
Coordination of Work:
1.
Coordinate seat and tabletop support requirements with installation of floor.
2.
Coordinate installation of electrical wiring with seating layout to ensure floor
junction boxes for aisle lights are located inboard of aisle light standards and
result in minimal exposure of electrical conduit.
Comply with the following as a minimum requirement:
1.
State of California, Bureau of Home Furnishings Technical Information
Bulletins - No. 116 Requirements, Test Procedures and Apparatus for Testing
Flame Retardance of Upholstered Furniture.
2.
State of California, Bureau of Home Furnishings Technical Information
Bulletins - No. 117 Requirements, Test Procedure and Apparatus for Testing
the Flame Retardance of Resilient Filling Materials Used in Upholstered
Furniture.
3.
NEMA LD 3 - High Pressure Decorative Laminates.
4.
ASTM A36 - Carbon Structural Steel.
5.
ASTM A879 - Steel Sheet, Electrolytic Zinc-Coated, for Light Coating Mass
Applications.
6.
ASTM D635 - Rate of Burning and/or Extent and Time of Burning of SelfSupporting Plastics in a Horizontal Position.
7.
ASTM D3453 - Flexible Cellular Materials, Urethane for Furniture and
Automotive Cushioning, Bedding, and Similar Applications.
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-2
8.
ASTM D3597 - Performance Specification for Woven Upholstery Fabrics Plain, Tufted or Flocked.
9.
ASTM D3770 - Specification for Flexible Cellular Materials - High Resilience
Polyurethane Foam (HR) and Combustion Modified High Resilience (CMHR)
Polyurethane Foam.
10.
ASTM F851 - Self-Rising Seat Mechanisms.
C.
Qualifications of Installer: A minimum of five years experience installing and
servicing auditorium, theater, and lecture room seating similar in kind, quality, and
extent indicated.
D.
CBC 1104B – Auditoriums, Assembly Halls, Theaters and related facilities –
accessible seating for persons using wheelchairs and semi-ambulant persons.
1.05
DELIVERY, STORAGE AND HANDLING
A.
Deliver seating, tops, pedestals, modesty panels, and accessories in manufacturer's
unopened cartons clearly labeled with manufacturer's name and contents.
B.
Store seating and accessories in dry location protected from damage and soiling under
environmental conditions acceptable to manufacturer.
C.
Protect seating and accessories from damage.
1.06
PROJECT CONDITIONS
A.
1.07
Environmental Conditions: Do not install seating and accessories until space is
enclosed and weatherproof; wet work in space is complete and nominally dry;
installation of finishes, including painting is complete; other units of Work above
ceiling are complete; ambient temperature and humidity conditions shall be
continuously maintained at values near those indicated for Substantial Completion.
MAINTENANCE
A.
Extra Materials: Provide extra seat and back covers equal to five percent of the amount
installed for each seat size and deliver to storage location as required by the OAR.
PART 2 - PRODUCTS
2.01
MANUFACTURERS
A.
Auditorium Seating:
1.
American Seating, floor-mount Model 2001, Stellar.
2.
Irwin Seating Co.
3.
Hussey Seating Co.
4.
Equal.
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-3
B.
2.02
Lecture Room Seating:
1.
American Seating, fixed lecture Model 270, Swing-Away Chair Module.
2.
Irwin Seating Co.
3.
Hussey Seating Co.
4.
Equal.
MATERIALS
A.
Steel Plates, Shapes, and Bars: ASTM A36.
B.
Electrolytic Zinc-Coated Steel Sheet: ASTM A591, commercial and drawing quality,
Coating Class C, chemically treated for baked-enamel finish; 0.0396 inch minimum
thickness unless otherwise indicated.
C.
Drilled-In Expansion Anchors: Expansion anchors complying with FS FF-S-325,
Group VIII anchors, expansion (non-drilling), Type 1 (internally threaded tubular
expansion anchor); and machine bolts complying with FS-FF-B-575, Grade 5, with
type and size selected by manufacturer to suit substrate and installation conditions
indicated.
D.
Auditorium Seating Materials:
1.
2.
PROJECT NAME
SCHOOL NAME
Exposed Hardwood Lumber: One of the following hardwood species, selected
for freedom from visible defects, as standard with manufacturer.
a.
Birch.
b.
Northern hard maple.
EDIT NOTE: SELECT ONE OPTION FROM THE FOLLOWING TWO
(2. AND 3.) DO NOT SPECIFY BOTH.
Seat Assembly, Fabric:
a.
Concealed Plywood:
Hardwood plywood complying with
ANSI/HPMA HP or softwood plywood complying with ANSI/VOL,
PROD. PS 1, as standard with manufacturer.
b.
Plastic Laminate: High pressure plastic laminate complying with
NEMA LD-3, GP 50, with color/pattern/texture as selected by the
Architect from manufacturer's standards.
c.
Molded Polyurethane Foam Padding: ASTM D3770; complying with
ASTM D3453, for Dynamic Fatigue Performance Grade AD (heavy
duty use) for seats and BD (normal duty use) for arm rests and seat
backs, and for load bearing and general physical properties, of grade
which is standard with manufacturer for kind of seat construction and
fabric covering indicated.
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FIXED AUDIENCE SEATING
12 6100-4
d.
Fabric: 100 percent nylon woven fabric complying to with requirements
of ASTM D3597, including those for heavy-duty surface abrasion
classification, and weighing not less than 20 ounces per linear yard.
1)
3.
E.
Color/Pattern/Texture: Selected from manufacturer's standard
range.
Seat Assembly, Plastic:
a.
Steel: Steel shall be furnished with smooth surfaces, be of sufficient
gage thickness, and designed to withstand strains of normal use and
abuse.
b.
Plastic: Plastic shall be high impact-resistant, HDPE polyethylene with
ultra-violet light inhibitors to retard fading. Plastic shall have a burn
rate of one foot per minute when tested in accordance with ASTM
D635 or the Department of Transportation Motor Vehicle Safety
Standard No. 302. Concern for the environment requires that molded
plastic parts be designed to be recyclable and shall be clearly designated
with the recycle symbol on each piece.
c.
Finish:
1)
Metal parts: Exposed metal parts shall be powder coated with
an epoxy powder coat finish. This powdered coated finish shall
be installed by electrostatic means to a thickness of 3 mils, and
shall provide a durable coating having a 4H pencil hardness.
Powder coated metal parts shall be treated with a 5-stage
bonderization process for superior adhesion, and after coating
shall be oven baked for proper flow of the epoxy powder to
result in a more durable finish. Colors shall be as selected from
manufacturer’s standard colors.
2)
Plastic parts: Color of plastic shall be as selected from
manufacturer's standard color range.
3)
Hardware: Assembly hardware shall be rust-resistant, blackplated. Threaded components utilize the standard thread
configuration and standard drive sizes common for the area
where the chairs are installed.
Lecture Room Seating Materials:
1.
PROJECT NAME
SCHOOL NAME
Seat Assembly:
a.
Steel: Steel shall have smooth surfaces and be of sufficient gage
thickness and designed to withstand strains of normal use and abuse.
b.
Plastic: Plastic shall be high impact-resistant, HDPE polyethylene with
ultra-violet light inhibitors to retard fading. Plastic shall have a burn
rate of one foot per minute when tested in accordance with ASTM
D635 or the Department of Transportation Motor Vehicle Safety
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FIXED AUDIENCE SEATING
12 6100-5
Standard No. 302. Concern for the environment requires that molded
plastic parts be designed to be recyclable and shall be clearly designated
with the “RECYCLE” symbol on each piece.
c
2.
Finish:
1)
Metal Parts: Exposed metal parts shall be powder coated with
an epoxy powder coat finish. This powdered coated finish shall
be applied by electrostatic means to a minimum thickness of 2
mils, and shall provide a durable coating having 4H pencil
hardness. Powder coated metal parts shall be treated with a
minimum five stage bonderization process for superior
adhesion, and after coating shall be oven baked for proper flow
of the epoxy powder to result in a more durable finish.
Manufacturer’s standard color range shall be used.
2)
Plastic parts:
Color of plastic shall be selected from
manufacturers standard color range.
3)
Hardware: Assembly hardware shall be rust resistant, black
plated. Threaded components utilize the standard thread
configuration and standard drive sizes common for the area
where the chairs are installed.
Table Tops:
a.
Plastic Laminate: High pressure laminate conforming to NEMA
standard LD 3; 0.050 inches.
b.
Particle Board Core Material: 1 ¼-inch thick consisting of a 43 pounds
per cubic foot density, conforming to ANSI A208.1, Table 1 Grade 1M-2.
c.
Backing Sheets: Semi-exposed surfaces shall be finished with .050
inches high-pressure laminate, conforming to NEMA Standard LD-3.
d.
Adhesive: Type II water-resistant, rigid type glue of formula
conforming to PS 51.
e.
Edge Banding: Edges of the tabletop shall be routed to accept a 1 ¼inch extruded vinyl bullnose with barbed insert requiring no other
fasteners.
f.
Table Top Connectors: Flush connectors in combination with wood
splines shall be used to join adjacent tables.
g.
Solid Lumber:
1)
2.03
Solid lumber for exposed members, and special details shall be
"Clear" birch or northern hard maple.
FABRICATION
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-6
A.
Fabricate auditorium, theater, and lecture room seating units in contoured form for
maximum comfort, furnishing materials that are carefully selected to be free of
defects, objectionable projections, or irregularities. Smoothly round corners, edges,
and exposed fasteners, to present least possible snagging and pinching hazards.
B.
Floor Mounting: Fabricate seating and table units for attachment to floor, with
standards manufactured to conform to floor while maintaining seat and back in the
same angular relationship to standards throughout.
C.
Tubular Steel Standards: Fabricate chair and table standards of heavy gage rectangular
steel tubing securely welded to steel-mounted plate, with seat, back, and arm rest
connections welded to tubing.
D.
Auditorium Seating Specific Fabrication:
1.
End Panels: Provide manufacturer's end panels in configuration indicated,
fastened to aisle standards, surfaced with plastic laminate.
a.
Provide moveable or removable end panels on accessible aisle transfer
chairs.
1)
When end panel is lowered or removed, provide sufficient clear
space for insertion of wheelchair passenger transfer board.
2)
Return end panel to chair side position when transfer is not
occurring.
2.
Chairs: Fabricate auditorium and theater seating with padding and fabric
covering. Furnish each seat with manufacturer's standard self-rising seat
mechanism so that unoccupied seats return to raised position for maximum
passing room. Provide folding tablet arms at each seat with left-handed tablets
on appropriate aisleway.
3.
Seats:
a.
PROJECT NAME
SCHOOL NAME
Seat assembly shall be two part, arch-spring construction indicated
below with upper part removable for re-upholstering without removing
complete seat from chair.
1)
Upper part: Molded polyurethane foam padding over not less
than five serpentine springs attached to reinforced steel frame;
with weight-distributing and abrasion-resistant sheeting
separating padding from springs; upholstered with fabric sewn
into box construction without weights and securely attached to
frame with clips to produce surface free of creases, stretch lines,
or wrinkles.
2)
Padding thickness: 3 3/8-inch thick at crown on the front and 2
½-inch at rear.
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FIXED AUDIENCE SEATING
12 6100-7
b.
3)
Lower part: One-piece pan formed of 20 gage thick steel sheets,
reinforced at points of stress and completely enclosing hinges
and self-rising seat mechanisms.
4)
Hinges: Heavy-duty cast iron or steel hinges of compensating
type, with noiseless self-rising seat mechanisms passing ASTM
F851 and operating as indicated below, providing seat rotation
on bushings not requiring lubrication, and positive internal stops
cushioned with rubber or neoprene. Spring operated to raise
unoccupied seat automatically to uniform three-quarter fold and,
by application of slight additional pressure, to a position
perpendicular to floor line.
Upholstered backs with upholstered element consisting of polyurethane
foam of thickness indicated, glued to curved steel or plywood support
panel and covered with fabric, fastened in a manner to simplify
replacement; and curved rear panel of material indicated, not less than
26 inches long in order to protect seat in upright position.
1)
Padding thickness: 2-inch overall, 3-inch thick at front, and 1
1/2-inch at rear.
2)
Plastic rear panel formed of one-piece, injection molded highimpact plastic in color selected by Architect, with textured,
scuff resistant surface, and formed to fully enclose edges of
upholstered panel.
a)
3)
4.
PROJECT NAME
SCHOOL NAME
Provide sufficient mounting bolt holes in chair back
mounting bracket and standards to permit adjustment of
back angle.
Arm rests: Provide one arm rest at each aisle and between
chairs, designed for concealed mounting to standards, and as
follows:
a)
Wood: Provide solid hardwood lumber construction
with edges well rounded.
b)
Accessible aisle transfer chair arm rests: Hinge from
normal position to clear aisle of chair for board transfer
of wheelchair passenger to seat; return arm rest to secure
position at aisle side of chair when transfer is complete.
Folding Tablet Arms for 2001 Chairs:
a.
Tablet arms shall provide a writing surface and a unique folding action
which permits tablet arms to fold between occupants of two seats,
completely out of way and easily accessible when needed.
b.
Tablet arm mechanisms shall consist of tablet arm supports securely
attached to table arm surfaces with a minimum of six screws, and tablet
arm hinges that provide easy tablet arm folding operation. The arms
10/01/2011
FIXED AUDIENCE SEATING
12 6100-8
fold by raising 90 degrees to a vertical position then pivoting downward
180 degrees, positioning alongside middle standard just below arm
blocks. Tablet arms are held in place in folded position with spring
actuated mechanisms. Spring tension shall prevail during first 45
degrees of pivoting motion, starting at stored position. Remainder of
pivoting cycle shall be free of spring tension and friction to make return
to writing position possible with a quick easy motion, not requiring
occupant to bend or reach. Transmission of spring tension shall be
made with nylon cams and cam fingers, to prevent noise and ensure
long wear life.
E.
c.
Tablet arm spring and pivot mechanism shall be housed in cast iron
supports, which shall be attached to middle and end standards with a
minimum of three bolts, lock washers and nuts.
d.
Tablet arm writing surface shall be furnished in a simulated walnut,
leather white or saddle brown pattern, composed of thermosetting
melamine plastic laminate panels, applied to moisture resistant phenolic
resin bonded cores and shall be fastened to tablet arm supports by no
less than six screws.
e.
Tablet arms shall provide writing surfaces measuring approximately 15inch wide by 13 5/8-inch long, offering 145 square inches of writing
area. Tablet arm assembly shall be capable of supporting a critical load
of at least 200 pounds on a point directly in front of the occupant.
Lecture Room Specific Fabrication
1.
2.
Chair Upper:
a.
Frame: The frame shall be formed of 14 gage .083 welded seam, cold
rolled, steel tubing. A 16 gage steel inner reinforcement tube shall
extend from the center of the arms to the seat pan. Two side frame
halves shall be joined with reinforcement tubes welded in place. A
tubular frame section shall be welded to the side frame providing
support to the front area of the seat forming a lateral cross brace under
the seat between the frame halves.
b.
Seat and Back: The seat and back shall be a copolymer plastic color
clear through with soft etch texture, available in standard American
Seating colors. The seat shall attach to the frame by locking onto the
seat frame at the front and be held in place with pop rivets.
Pedestal Table and Chair Support:
a.
PROJECT NAME
SCHOOL NAME
Heavy gage rectangular steel tube shall be welded to a steel floor
attachment plate A cast iron pivot bracket shall be inserted into the
lower vertical section of the table and securely fastened. The bracket
shall support two cantilevered tubular steel seat support arms with a
steel pivot housing. A swivel mechanism and spiral springs shall be
inserted in each pivot housing with two nylon bearings.
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FIXED AUDIENCE SEATING
12 6100-9
b.
3.
2.04
The chair top support flange shall be attached to the seat swivel
mechanism. The entire unit shall be designed to provide minimum 27"
center to center spacing between the chair when occupied, and
minimum 13 ¾-inch from the edge of the table top. A minimum 6-inch
space between couples or single shall be provided for ease of entry and
exit.
Table Top:
a.
Tables shall be custom manufactured to the specific room size and
configuration for each project. Tables shall be curved or straight as
designated on Drawings. Exposed corners shall have 1 ½-inch radius.
b.
Flush connectors in combination with wood splines shall be used to
join adjacent tables.
ACCESSORIES
A.
Aisle Lights: Manufacturer’s standard pre-wired, concealed, UL-approved aisle
lighting fixtures installed in end standards, as indicated on electrical Drawings; with
utility boxes, light sockets, six watt bulbs and round, hooded light covers.
B.
Number and Letter Plates: Manufacturer’s standard anodized aluminum plates with
black-etched characters for seat location identification system corresponding to
reviewed Shop Drawings. Provide number plates with vandal-resistant recesses at
front of seats and secure with two rivets. Attach matching row identification plates at
rear of each aisle armrest.
2.05
FERROUS METAL FINISHES
A.
General: Comply with NAAMM Metal Finishes Manual for recommendations
relative to application and designations of finishes.
B.
Surface Preparation: Clean surfaces of dirt, grease and other contaminants followed
by a conversion coating of type compatible with finish coating.
C.
Baked Enamel Finish: Immediately after cleaning and pretreatment, install
manufacturer’s standard two-coat baked enamel finish.
D.
Color and Gloss: As selected by Architect from manufacturer's standard choices for
color and gloss.
2.06
WOOD FINISHES
A.
Lacquer Finish: Seal and stain wood and install lacquer in sufficient film thickness to
provide protection under heavy usage.
PART 3 - EXECUTION
3.01
EXAMINATION
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-10
A.
3.02
INSTALLATION
A.
B.
C.
3.03
Examine substrates and conditions for compliance with requirements for construction
tolerances, material properties as they affect anchors and fasteners, and location of
junction boxes. Do not proceed with installation until unsatisfactory conditions have
been corrected.
Install seating according to manufacturer's installation instructions in locations as
indicated on Drawings.
1.
Seating plan to be reproduced on floor with rows laid out on radius indicated
by seating plan.
2.
Position of end and middle standards to be located by true radical line shall be
accurately determined.
3.
Straight rows, if any, shall be laid out in same manner. Floor dimensions shall
be verified with seating layout.
Concrete Floors:
1.
Chairs shall be fastened to concrete floor by means of two expansion bolts of
1/4 inch per standard which are set in hole drilled a minimum depth of 1 ¼inch.
2.
At floor covering, holes are to be drilled sufficiently deep to ensure a minimum
depth of 1 ¼-inch into concrete. Expansion bolts shall be lead drive anchors
consisting of the following:
a.
Bolts: 1/4 inch by 1/2 inch by one inch (commercially known as two
percent antimony lead) with one end recessed to fit cone.
b.
Cones: Cast hard metal or steel.
c.
Lock washers: 1/4 inch diameter split lock washer.
d.
Nuts: Shall be permanently secured by means of lock washers.
Standards: Anchored with not less than two anchoring devices of sizes and types
required to produce chairs free from rock or instability under actual use.
ADJUSTING AND CLEANUP
A.
Verify that moving components operate smoothly and quietly.
B.
Adjust self-rising seat mechanisms to ensure seats in each row are aligned when in
upright position.
C.
Repair minor abrasions and imperfections in painted finishes with a coating that
matches factory applied finish.
D.
Replace upholstery fabric damaged during installation.
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-11
E.
3.04
Remove rubbish, debris, and waste materials and legally dispose of off the Project site.
PROTECTION
A.
Protect the Work of this section until Substantial Completion.
END OF SECTION
PROJECT NAME
SCHOOL NAME
10/01/2011
FIXED AUDIENCE SEATING
12 6100-12